Birth control without hormones or side effects
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FSA & HSA
How does it work?
You can only get pregnant 6 days each cycle. The algorithm behind the NC° app uses body temperature to find these days.
The algorithm learns the pattern of your cycle, giving a daily fertility status, so you can prevent pregnancy hormone-free!
What do I need to do?
Measure your temperature
Open the NC° app
Confirm daily fertility status
How does Natural Cycles compare to other methods?
Percentage of typical users who did not get pregnant with the method over 1 year of use. Read more.
Find out if Natural Cycles works for you
Your journey starts today
You must be over the age of 18. Does not protect against STIs.
Natural Cycles is 93% effective with typical use, 98% effective with perfect use. No method of contraception is 100% effective. Natural Cycles does not guarantee that you cannot get pregnant, it only informs you whether and when you can become pregnant based on the information that you enter into the application.